Feed mechanism for wire bound box blank machines



March 15, 1949 D, G. KINGSLEY FEED MECHANISM FOR WIRE .BOUND BOXv BLANKMACHINES 5 Sheets-Sheet 1 Filed Nov. 27, 1 946 QW J 6 Y. 2 MM 4H M MT 0/R W m .m rm m K m .x E u \& 1/, w d 1 I a a Q 8 m *5 Na o a E 6 March15, 1949. D. G. KINGSLEY 7 2,464,691

I FEED MECHANISM FOR WIRE BOUND BOX BLANK MACHINES Filed Nov. 27, 1946March 15, 1949. KINGSLEY- 2,464,691

FEED MECHANISM FOR'WIRE BOUND BOX BLANK MACHINES Filed Nov. 27, 1946 sSheets- Sheet 5* IN VEN TOR.

,DaBIiid Kin sly Patented Mar. 15, 1949 UNITED sures can;

FEED MECHANISM FOR WIRE BOUND BOX BLANK MACHINES Application November27, 1946, Serial No. 712,711

6 Claims.

stock fedto the machine; a machine that requires less power consumption;and a machine that may be operated to produce greater output per hour.

Other objects will be in part obvious and in part pointed outhereinafter.

'Theinvention accordingly consists in the features of construction,combinations of elements, and arrangements of parts as will beexemplified in the structure tobe hereinafter described and the scope ofthe application of which will be indicated in the "following claims.

"In 'the accompanying drawings in which is shown one of the variouspossible embodiments of my invention:

Figure l is atop plan view partially diagrammat-ic of one embodiment ofa box-making machine utilizing the invention;

Figure 2 is an enlarged fragmentary sectional viewtaken .on the 'line2-2 of Figure 1, showing box parts being conveyed and guided bymechanism embodying the invention;

Figure '3 is a side elevation of Figure 1 with certain parts brokenaway;

Figure i is an enlarged detailed top plan view of-the delivery-end ofthe machine of Figure 1, showing in more detail conveying and guidingmechanism embodying the invention, and showlug-driving mechanism fordriving the conveying and'g-uiding mechanism;

F'igure 5 is an enlarged fragmentary side elevation of a portion of themachine shown in Figure 4;

Figure c is an enlarged top plan view of the receiving end of themachine of Figure 1; and

Figure 7 is an enlarged side elevation of the partsas shoWninFigureG.

Similar reference characters refer to similar parts throughout thevarious views of the drawmgs.

Box-making machine of the type in which the present "invention isparticularly useful, secure side sheets (or slats) to cleats togetherwith a flexible binder tpreiterably wire), and join adjacent sets ofsuch secured sheets and cleats together with the flexible binder ina'continuous operation to make folding box or crate blanks, or shocks,or to make parts such as ends or sides for such box or crate blanks. Thecleats are usually re-sawed Wood and serve to hold together, space andreinforce the side sheets, which are made from veneer, fiber board,re-sawed lumber, or other suitable thin material sufficiently strong tocarry the load for which the box or crate is designed. The wire binderreinforces the assembled box or crate and makes possible the use of thethin veneer side sheets. The cleats and side sheets are assembled On amoving conveyor and carried by the conveyor through suitable staplingmechanism that staples the sheets to the cleats, and simultaneouslystaples the binding wire to the parts to secure them together, as wellas to provide continuous circumferential binding around the completedbox or crate. Also, the binding Wire may be used to secure separate boxparts together.

The width of the conveying mechanism and the stapling mechanism isadjustable so that the same machine may be adjusted to make Wide boxblanks or narrow box blanks, or box blanks of intermediate widths. Theconveying mechanism and the operation of the stapling mechanism areadjustable to permit the assembly of cleats of different lengths andindividual side sheets of different widths, and to permit differentspacings of the side sheets with respect to each other. Thus, suchmachines are useful to produce a wide variety of shapes of boxes,barrels, crates, shooks,

etc. Such a box making machine is shown in detail in United Statespatent to A. L. Rosenmund No. 2,304,510, issued December 8, 1942.

Referring to the drawings, Figures 1 and 3, such a machine includes acleat and side sheet assembly and conveying mechanism generallyindicated by the section A. In this section the cleats a and the sidesheets 19 are assembled on moving conveying belts i and 2, in accordancewith a prearranged order determined by spacin blocks I05 each having acleat spacer element 0 and a side sheet spacing fin (1 carried by theconveyor belts l and 2, The conveying mechanism conducts the cleats andside sheets thus assembled through stapling mechanism such as isdescribed in the above-mentioned Rosenmund patent, but not shown in thepresent drawings, which would occupy the section generally indicated byB. In this stapling section, wire strands are stapled to the parts asabove described, and a continuous succession of finished box blanks aredelivered from the section generally indicated'by (Leach joined togetherby the wire-binding'which is subsequently cut to isolate the box blanksone from the other.

In prior constructions of such box blank making machines, the ends ofthe side sheets and the outside sides of the cleats are guided bystationary side walls such as l'i' (Figures 2 and 3), extending in adirection parallel to the movement of the conveyor belts I and 2.Because satisfactory production requires that the ends of the sidesheets be aligned, the spacing between the stationary side guides can beonly slightly greater than the lengths of the side sheets. In otherwords, relatively close adjustment of the stationary side guides withrespect to the lengths of the side sheets has been required.Consequently, as the conveycr belts I and 2 carry the side sheetsbetween the stationary side guides, there has always been thepossibility of frictional drag between the side sheets and thestationary side guides. Such a drag, in some instances, may beunobjectionable, but if a side sheet for some reason such as warpage orthe like becomes askew (i. e., moved to an oblique position with respectto the side guides) as the side sheet travels with the conveyor belt,then the frictional drag is materially increased. Because the sidesheets may be of relatively thin wood veneer, if a side sheet gets sodisarranged it may ride over the spacing block that is pushing it and sojam the machine. Such a condition most frequently arises when the veneerstock being used for the side sheets is warped or is cut incorrectly.Under such circumstances the operators feeding the side sheets to themoving conveyor belts and insuring their proper alignment on andmovement with the conveyor belts I and 2, are forced to operate themachine at a slower rate, thereby reducing the normal capacity of themachine. That such a slower operation may be a real disadvantage isapparent when it is understood that a machine such as shown in thedrawings is designed to operate to produce in the order of 500 wireboundorange crates an hour.

It is another object of the present invention to overcome suchdisadvantages and to provide a conveying construction which eliminatesall frictional drag on the side sheets.

in the present embodiment these objects have been accomplished byproviding oppositely disposed moving side walls against which the endsof the side sheets may abut, and which side Walls travel at theidentical speed of the conveyor belts I and 2;

Referring now to Figures 1 and 3, the right ends of the conveyor belts Iand 2, viewing the machine as in the drawing, are supported by idlersprocket wheels I rotatably mounted on a shaft I the ends of which aresupported in suitable bearings IOI. The left ends of the belts I and 2are supported by driving sprocket wheels I02 keyed to a drive shaft 36journaled in bearings I03. Each conveyor belt is provided with holes I04which mesh with studs I05 on the sprocket wheels, which studs serve inthe case of the driving sprockets I02 to drive the belt, and also withregard to sprockets l and I02 to keep each belt in proper alignment.Secured to each conveyor belt are the aligned spacer blocks I06 havingthe spacing elements 0 and d (only several are shown) which serve twopurposes(1) as a pattern for the positioning of the sheets and cleatswith reference to the conveyor belts, and (2) as a drive between theconveyor belts and the sheets and cleats. These spacer blocks are placedaround the entire length of each conveyor belt and have an arrangementpeculiar to the particular style of box being manufactured. Thus thelength of the conveyor belts and the spacing of the spacer blocks areselected so that if the belts were stretched out lengthwise they wouldprovide for the assembly of a whole number of box blanks suitably andevenly spaced one from the other. To this end the conveyor belts areadjustable in length, and the spacing between the sprocket wheels 1 andthe sprocket wheels N32 is adjustable by sliding the bearings IOI alongsupporting slides I0! at the receiving end of the machine.

Referring to Figure 2, adjacent the outside edge of each conveyor beltare horizontal bottom supports its on which the cleats slide while beingcarried forwardly by the spacer blocks to the stapling mechanism. Thesupports l00 are carried by angle supports i053 secured to framework I6(Fig. 1). The side sheets rest on the cleats, and in this way thesupported cleats and side sheets are moved forwardly by the spacing ele'ments 0 and d of the blocks I00 carried by the conveyor belts i and 2.The conveyor belts themselves are held horizontal in driving positionand kept from sagging out of a horizontal plane (Fig. 2) by anglesupports I09 extending parallel beneath the conveyor belts, so that theblocks M35 and their spacer elements 0 and d are maintained in properelevated driving position. The spacing between the opposing bottomsupports I08 and the opposing stationary side wall guides I1 isadjustable, as is the spacing between the conveyor belts l and 2, toaccommodate the length. of the side sheets being assembled into boxblanks.

The driving sprocket Wheels I02 for driving the belts I and 2 are driventhrough the medium of the shaft 30 and motor 20 in the following manner.Referring to Figures 1, 3, 4 and 5, the motor 20, located at thedelivery end of the machine (Figures 1 and 4) through belts 2I, drives asprocket 24 keyed to clutch drum pulley 22 clutched to main drive shaft23. The sprocket 24 through a chain drive 25 drives a sprocket 20 which,through suitable clutch mechanism, is engaged or disengaged from a shaft27. When the clutch is in engaging position the driving sprocket 26drives the shaft 27 which, through a train of gears 26, 20, 30 and 3!,drives shaft 32 (Figures 4 and 5). To shaft 32 is keyed a drive sprocket33 which, through a chain drive 34, drives a sprocket 35 keyed to theshaft 30, and this shaft imparts motion to the drive sprockets F02. Thisdriving mechanism is fully described in the above-mentioned patent.

Also as fully described in the above-mentioned patent, the operation ofthe stapling mechanism is properly synchronized with the movement of theconveyor belts I and 2, withthe spacing of the cleats, and with thespacing and widths of the side sheets, to drive the staples at properpoints. To this end suitable clutch-operating mechanism is provided, asgenerally indicated at II0 (Figure 1), to start and stop the staplingmechanism.

Returning now to Figures 1 and 2, the need of holding theside sheets band the cleats a. in proper alignment as they pass to the staplingmechanism, has already been discussed. In order to overcome the problemthat has previously existed, i. e. the drag between the side sheets andthe stationary side guiding walls I'I, it has been discovered that athin vertically disposed belt placed between the stationary side guidesand the side sheets I), and traveling at the identical speed of theconveyor belts I and 2, operates satisfactorily :01.) properly to.align'zthe side sheets rand the:cleats:and (2:)atoeliminatezallfrictional dra s on :the .side sheets. With thissconstruction'ithe side sheets are supported and guided lentirely i-ibyparts .allzmovingat the same speed. Z In lthe pres- .ent embodimentthese traveling side walls com-'- prise :thin metal belts 3 which .aresufficiently rigid zto withstand the :blows :to which "they :may besubjected while the operators are assembling the :cleats and side sheets1.011 :the moving :conveyor ;:belts .l and :2, :and are sufficiently-,st-r,ong to withstand the wearandrtear towhirihtthelbdlts Snnay ;besubjected in continuous (nitration. 21 have discovered that 'sucna metalbelt imay'zbe supported on and :driven by --sprockets identical toandhaving the-same axes :asiare used tmsupport and drive the conveyor beltsI and 2.; that byxproper manipulationithe'metalthelts may be turnedthrough =90 they pass ttrom the sprockets at the receiving end, and heldin this turned condition (i. e. in .a vertical :plane :-at*90 to :the\plane of the belts as supported Lby sprockets) until they reach thesprockets at the delivery end. The belts thus "turned are caused tostravel along in contact with the stationary side guides "I? so thatthe'belts"3-whichnow constitute moving side walls are effectively rigidin :so far as any outward lateral movement is concerned, even thoughthey are traveling "forwardly "with the conveyor belts I and '2.

To this and each belt s is supported at the receiving end of the machineon a sprocket "I, and at the delivery end on a sprocket 5, whichsprockets are respectively carried by theshafts Hi and 38-. -As shown inFigure '3, each belt 3 in passing from its drive sprocket *5 rearward-1ytoits idling sprocket l is horizontally "disposed. But'as 'the beltleaves the idling sprocket'1,'it is turned through 90, as shown inFigures 1,13, Hand 7. The mechanism 'forthusturning each belt isconstructed as follows: Two pppositely disposedrollers l3 and E; aretmoun'ted *to tu-rn freely on vertical stud shafts M andIflwrespectively. The shafts it and I la are :imounted on a rigid frameI5 secured with respect to 'the frame l6, which is part of the frameworksupporting the-slide bars 1b! which support the'shaift I130. "The belt 3in leaving the sprocket 1 passes between the rollers 53 andI'tawhi'chturn'the plane of the belt throughil l. The rollers 13 andI3a, are so placed with reference to the periphery pf the sprocket Ithat in imparting "this quarter turn to the belt, a-minimum of tensileand compression stresses are imparted'tctheibe'lt; and yet they arepositioned to bring thebeltintp vertical alignment with the side wallsII, the horizontal center lines of which lie .above ithe two conveyor"belts I and 2. This construction provides for utilizing sprocket wheels.1 which have the same diameter andaxisas the sp ocket wheels supportingthe conveyor belts ,I and iz.

In addition to the guide rollers J3 and 1311., a third roller l3b isprovided to guide-eachhelt 3 into horizontal alignment with.its..stationanyrslde wall H, i. e. an alignment such thatxeach beltactually contacts and slides along its side wall ISI. 'The roller 311 issupportedpnzazstud shaft Mb supported from the frame :15. 'By iutilizingsuch gaathird roller is?) vthe:icller. sprocket :may be convenientlyspaced from the adjacent sprocket upportingtthe :companion conveyorcbelttwhile at the same :time p ermitting-"the stunned melt'd thebeztbltought 'into the :desired lateral sspacing 1. 1th respect :to .theadj acent conveyor lhelt as :the

travel itogether gin conveying the eoleats and aside steel :or may berubber covered to provide a re- 5 silient surface which effectivelyincreases their diameters and :thereby reduces the strains imparted tothe belt 3 las it ipassescover :therollers. The receiving end of eachstationary .side guide H :is preferably shaped as shown at .I'Iiaso thatthe belt 3 :may move tangentially into contact with the side guide and:thereby eliminate straining the :belt :3 :at the point Where it :movesinto engagement-with the side guide IFI.

Referring :now to the delivery end of-ithe :machine and particularly toFigures '1, :4 and 5,;the side guide :Ii'I extends through the.s-taplingisec tiongB, and thebelt .3 ismaintainediniitsrverth calguiding position :to hold the :cleats and side sheet-s aligned .untilafter the stapling operation is completed. 'As shown :in Figure 4, theside guide I] ends at the point Hb, vandithetbelt 3 leaves the end Ilbpasses over -a, vertically disposed roller it mounted on a stud shaftlIJ). The peripheryxcf the rcllerie is tangent zt-oianrextension of thesupporting surface :of::the side it! so that the .belt 13, :in passingfrom the 2-point Nb of the side support I1, is not strained. .As shownin Figure 5, the stud shaft II] is supported on framework 1! .I :madesuitably rigid :with .re-

spect -ito the stationary sid guides I, and to the base frame 1-2. Inpassing from the rollerifl' the belt is pulled lover a vertically:disposed :stattionary curved guide 9a opposite *W-hichtis a :verticallydisposed roller :ilb which is mounted :on a stud shaft :Iba. Thesetwoiparts serve to-meve the belt .3 back into alignment with thesprockets 5 :and fl, and also serve :to spread the two belts 3-.and=to:rem0ve-:them from engagement withthe new assembled i'box blank. Thisrelease --of the box blank from the traveling side "walls :permits thebox rbla'nk to travel forwardly lindependen't of all :conveyance,because simultaneously with the spreading of the side walls ;3, theconveyors I and :2 (as shown in Figures 3 and 5-), take a downward:sl-ope after passing through "the stapling section "B, to remove thespacer elements 0 and d from contact with the finished 7 box blank. Theconveyor belts are lowered "by positioning the shaft-.35 supporting thedriving sprockets 102 in a plane below the shaft I 00 supporting therear idlingsprockets.

The shaft 36 being placedbelow the-shaft I llIl places the top of drivesprockets 5be1owthe horizont-al center line of belts 3 as they leave theside guide-s Il. Therefore, to avoid bending "the belts 3 downwardly asthey are turned back into their normal planes, each belt tisfirstturnedinto its normal plane while running parallel -to the :centerline Oftheside guides; and then after being turned, is caused to pass downwardlyto engagement with the driving sprocket *5. The mechanism to accomplishthis operation is as follows:

*Each belt *3 (Figure 5') in passing drone the roller ib andthe curvedsupport 9a, passes 'over a curved horizon-tally disposed-guiding surfaceec, suitably rigidly supported on a post 'I I a secured to the framework$2, in vertical and horizontal alignment with the belt asit is heldbetween the part 1911 and the roller 3b. A roller 3d mounted =on-a shaftIIlb opposes the surface Sc andthess two partstact-tc give thebelt therequired reverse quanter turn. "Theshaft Hlb *ls supported on the postIiIa. llhabe'lt -inleaving-theguide 90 passes GOWnWaBdIYIUO EhG flI'iVBsprocket 5,-which is pf a es-c91 the same diameter as the drivesprockets I02 for conveyor belts l and 2. 1 The construction describedhas, among others, the advantages of using the same drive mechanism forboth the conveyor belts I and 2 and the side wall belts 3, while at thesame time permitting the belts to be driven at identical speeds.

Referring to Figure 1, the framework supporting the rollers at thereceiving end of :the machine which give the belt its quarter turn, andthe framework supporting the rollers and guides that give the belt itsreverse quarter turn are laterally adjustable so that the belts 3together with the stationary side guides l1 and the driving and idlingsprockets may be laterally adjusted to accommodate the mechanism to thedesired length of side sheets being fabricated into box blanks. Thebelts 3 are adjustable in length, as are the conveyor belts I and 2, toaccommodate the machine to the length of box blank being fabricated. Asmany possible embodiments may be made of the above invention and as manychanges might be made in the embodiment above set forth, it is to beunderstood that all matter hereinbefore set forth or shown in theaccompanying drawings is to be interpreted as illustrative and not in alimiting sense.

I claim:

1. In a box-making machine having a receiving end and a delivery end andstapling mechanism there-between for securing together box partsassembled in longitudinal and lateral position, in combination, feedingmechanism for feeding assembled box parts to said stapling mechanism,said feeding mechanism including a plurality of moving endless conveyorsextending from the receiving end to the delivery end, each conveyorbeing trained about members rotatable about axes located respectively atthe receiving and delivery ends, spacer blocks secured to said endlessconveyors for longitudinally spacing said box parts and for moving thesame forwardly to said stapling mechanism, and two oppositely disposedendless side bands extending parallel to said conveyors, and eachtrained over members respectively rotatable about the said axes, saidside bands serving to align the laterally positioned box parts laterallywith respect to said conveyors and stapling mechanism as said box partsare moved forwardly to said stapling mechanism, and a drive driving saidside bands at a speed identical to that of said conveyors.

2. In a box-making machine having a receiving end and a delivery end andstapling mechanism therebetween for securing together box partspositioned laterally and longitudinally, in combination, feedingmechanism for feeding assembled cleats and side sheets to said staplingmechanism, said feeding mechanism including a plurality of movingendless conveyors extending from the receiving end to the delivery end,each conveyor being trained about members rotatable about axes locatedrespectively at the receiving and delivery ends, spacer blocks securedto said endless conveyor means for spacing said box parts and for movingthe same forwardly to said stapling mechanism, and two oppositelydisposed endless side bands extending parallel to said conveyors, andeach trained over members respectively rotatable about the said axes foraligning said laterally positioned box parts laterally with respect tosaid conveyors and stapling mechaism as said box parts are movedforwardly to said stapling mechanism, means for driving said side bandsat a speed identical to that of said conveyors, and guides holding eachside band in a plane perpendicular to the plane of said laterallypositioned box parts as said side bands travel from the receiving end tothe delivery end.

3. In box-making machinery havin an assembly section for assembling inlongitudinal and lateral positions box parts to be secured together, asecuring section for securing the box parts, and a delivery section fordelivering the assembled and secured parts, in combination, feedingmeans for properly locating said box parts in the assembly section andfor moving the assembled parts to said securing section and to saiddelivery section, said feeding means including two moving spacedparallel endless conveyors each of which is trained over a frontsprocket at the assembly section and a rear sprocket at the deliverysection supported respectively on a front shaft and a rear shaft wherebythe two upper turns of the conveyors move forwardly at the same speedpast said three sections and carry forwardly the assembled box parts,and two moving side walls respectively extending parallel to and outsideof said upper turns for laterally aligning the laterally positioned boxparts with respect to said assembly and securing sections, said movingside walls comprising two metal bands each trained over front and rearsprockets of the same diameter as the front and rear sprocketssupporting said conveyor means and respectively supported on said frontand rear axes, and a drive for driving one of said shafts to impart theidentical speed to said conveyors and to said two metal bands.

4. In box-making machinery having an assembly section for assembling inlongitudinal and lateral positions box parts to be secured together, asecuring section for securing the parts, and a delivery section fordelivering the assembled and secured parts, in combination, feedingmeans for properly locating said box parts in the assembly section andfor moving the assembled parts to said securing section and to saiddelivery section, said feeding means including two moving spacedparallel endless conveyors each of which is trained over a frontsprocket at the assembly section and a rear sprocket at the deliverysection rotatable respectively about a front axis and a rear axiswhereby the two upper turns of the conveyors move forwardly at the samespeed past said three sections and carry forwardly the assembled boxparts, and two moving side walls respectively extending parallel to andoutside of said upper turns for laterally aligning said laterallypositioned box parts with respect to said assembly and securingsections, a drive driving said moving side walls at a speed identical tothat of said conveyor means, said moving side walls comprising two metalbands each trained over front and rear sprockets of the same diameter asthose supporting said conveyors and,

respectively supported on said front and rear axes, forward guides forgiving each metal band a quarter turn as it leaves its front sprocket,and rearward guides giving each metal band a reverse quarter turn as itapproaches the rear sprocket, whereby each metal band is held in a planeat right angles to the said front and rear axes and broadside to saidlaterally positioned box parts as it travels forwardly to the securingsection;

5. In box-making machinery having an assembly section for assemblinglongitudinally and laterally arranged box parts to be secured together,a securinglsection for securing the'box parts, and a delivery sectionfor delivering the assembled and secured parts, in combination, feedingmeans for properly locating said box parts in the assembly section andfor moving the assembed parts to said securing section and to saiddelivery section, said feeding means including two moving spacedparallel endless conveyors each of which is trained over a frontsprocket at; the assembly section and a rear sprocket at the deliverysection rotatable respectively about a front axis and a rear axiswhereby the two upper turns of the conveyors move forwardly at the samespeed past said three sections and carry forwardly the assembled boxparts, and two moving side walls respectively extending parallel to andoutside of said upper turns for laterally aligning said laterallyarranged box parts with respect, to said assembly and securing sections,a drive driving said moving side walls at a speed identical to that ofsaid conveyors, said moving side walls comprising two metal bands eachtrained over front and rear sprockets of the same diameter as thosesupporting said conveyors and respectively supported on said front andrear axes, forward guides giving each metal band a quarter turn as itleaves its front sprocket, rearward guides giving each metal band areverse quarter turn as it approaches the rear sprocket, whereby eachmetal band is held in a plane at right angles to the said front and rearaxes and broadside to said laterally arranged box parts as they travelforwardly to the securing section, and intermediate guides for guidingand backing each metal band as it travels forwardly in its quarterturned condition.

6. In box-making machinery having an assembly section for assemblinglongitudinally and laterally arranged box parts to be secured together,a securing section for securing the box parts and a delivery section fordelivering the assembled and secured parts, in combination, feedingmeans for properly locating said box parts in the assembly section andfor moving the assembled parts to said securing section and to said 10delivery section, said feeding means including two moving spacedparallel endless conveyors each of which is trained over a frontsprocket at the assembly section and a rear sprocket at the deliverysection rotatable respectively about a front axis and a rear axiswhereby the two upper turns of the conveyors move forwardly at the samespeed past said three sections and carry forwardly the assembled boxparts, and two moving side walls respectively extending parallel to andoutside of said upper turns for laterally aligning said laterallyarranged box parts with respect to said assembly and securing sections,a drive driving said moving side walls at a speed identical to that ofsaid conveyors, said moving side walls comprising two metal bands eachtrained over front and rear sprockets of the same diameter as thosesupporting said conveyors and respectively supported on said front andrear axes, forward guides giving each metal band a quarter turn as itleaves its front sprocket, rearward guides giving each metal band areverse quarter turn as it approaches its rear sprocket, whereby eachmetal band is held in a plane at right angles to the said front and rearaxes and broad side to said laterally arranged box parts as they travelforwardly to the securing section, and intermediate guides guiding eachbelt band after it has received its quarter turn inwardly into thedesired aligning side wall position, and guiding each belt outwardlyaway from the side sheets at the delivery section before the saidrearward guides impart the reverse quarter turn.

DAVID. G. KINGSLEY.

REFERENCES crrap The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 877,744 Schotten Jan. 28, 19081,870,278 Broadfield Aug. 9, 1932 2,304,510 Rosenmund Dec. 8, 1942

